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English definition of “of”

of

preposition (POSSESSION)    weak /əv/ strong /ɒv/ US  /ɑːv/
A1 used to show possession , belonging , or origin : a friend of mine the president of the United States employees of the company the colour of his hair a habit of mine that revolting dog of hers the love of a good woman the complete plays of (= written by) LorcaBelongings and possessions Grammar:OfOf is a preposition.Grammar:Possessive ’sWe use apostrophe s (’s), also called possessive ’s, as a determiner to show that something belongs to someone or something:Grammar:Possessives with ofGrammar:’s or of or either?There are some general rules about when to use ’s and when to use of but there are many cases where both are possible:Grammar:Possession: typical errors
(Definition of of preposition (POSSESSION) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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